Aurora Bridge Incident Seattle Depamm?m of Transportalim Presentation overview • Incident Response and Management • Previous Studies and Projects • Roadway Characteristics 2 Incident Response-SFD • Initial Dispatch to 3700 Aurora Av N @ 11:13 • 1st Chief On Scene @11:15 – Initial Incident Priorities : Fire & Life Safety, Establish Command and Request Additional Resources • 1st Unit on Scene @ 11:18 • Established Unified CommandSFD/SPD/SDOT/AMR • 1st Patient Transported @ 11:29 • Last Patients Transported @13:00 by MAB1 Incident Response-SPD • Initial Dispatch @ 11:11 • 1st unit on scene @11:20 – Initial Incident Priorities : scene protection, traffic diversion and emergency responder access and egress • Officers dispatched to area hospitals • 4 Sgts, 50 officers,20 PEO’s • At scene from 11:20 am to 10:50 pm Aurora Incident/ MCI Text here Transportation Treatment Area Incident Trailer Corridor Command Post Transportation Incident and Corridor Triage Area Aurora Incident • SFD Resources – 11 Engines – 7 Ladder Trucks – 8 Medic Units + 2 Shoreline Medic Units – 2 Aid Units + 25 AMR BLS Units – MCI Trailer – MAB1 – Command Staff – 3 MSO’s – PIO • Initial Patient Transports – 9 Red Patients (Critical) – 25 Yellow Patients (Stable, Needs Hospital Care) – 10 Green Patients (Requires Doctors Care) – 7 Green Patients Transported by MAB1 – Note: This was critical test of the Disaster Medical Control Center, our coordinated MCI Plan. It worked well! Incident Response and Management • Incident Notification • Road Closure and Detour • Mitigation Efforts Staging Area Restricted Bridge Openings Staging Area Side Street Closures to SR99 Advanced Messaging Aurora, Fremont and Dexter Signal Timing Incident Site Closure Westlake Ave Bus Lane NB SR99 Closure at Western Advanced Messaging 7 Incident Response and Management • Incident Clearance – Vehicle clearance – Roadway preparation – Bridge inspection • Logistical Support – Oversized cargo routing – Evidence storage 8 Traffic Incident Management (TIM) Checklist  Improved notification system to Transportations Operations Center  Improved coordination between SPD and Transportations Operations Center  Provided public facing alerts and alerts to transportation partners  Staged appropriate material and equipment for mitigation and clearance  Coordinated with towing company for appropriate equipment and timing  Provided training to majority of staff involved in response (SPD and SDOT)  Escalated command across departments for major decisions  Advanced Detour Preparation 9 Incident Investigation • SPD has primary investigating responsibility • Large scale investigation • Working in close cooperation with the NTSB • Numerous items of evidence have been retained in secured storage • Whenever possible personal items have been returned to their owners 10 Previous Studies and Projects • 2003 WSDOT Route Development Plan • 2008 SDOT Aurora Transportation Safety Corridor • WSDOT Bridge Railing and Fencing Projects 11 Roadway Characteristics • Bridge Information – Constructed 1932 – 2,945 feet long • Channelization – 6 Lane Roadway • Traffic Volume – 70,000 vehicles per day – 492 daily bus trips – 28,230 daily bus ridership • Traffic Speeds – 40 mph speed limit – Off-Peak median speed • 38 – 50 mph – 85th Percentile Speed • 45 – 55 mph • 10 Year Collisions History (1/1/05 – 9/23/15): – 124 total reported collisions – 35 injury collisions – 19 opposing vehicle collisions – 0 fatal collisions 12 Roadway Characteristics Average Daily Traffic (vehicles) Total # of Collisions 2012-2014 Length (miles) Collisions per Mile Collision Rate (per million veh. miles) Ballard Bridge 63,800 39 0.6 65 0.93 Fremont Bridge 31,000 12 0.2 60 1.77 Lake City Way (120th to 135th) 37,100 133 0.8 166 4.09 Rainier Ave S (Letitia to Seward Park Ave S) 21,700 - 29,900 911 4 228 8.06 70,000 35 0.6 58 0.76 Location Aurora Bridge 13 SEMTLE . "in: 1.: En I Questions? a [i Seattle Department of Transportation